-- Wrongri-La Shower

import Control.Monad
import Data.Char

days :: [Int]
days = [31, 28, 31, 30, 31, 30, 31, 31, 30, 31, 30, 31]
       
main = do
  let
      ds = flip concatMap [1..12] $ \m -> do
             d <- [1..days!!(m-1)]
             guard ((sum . map digitToInt . show) d == m)
             return (m, d)
   in print $ length ds